Journal
NANO LETTERS
Volume 8, Issue 10, Pages 3441-3445Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl8023092
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Funding
- U.S. Department of Energy [DE-AC02-05CH11231]
- Office of Naval Research
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We report a process to form large-area, few-monolayer graphene oxide films and then recover the outstanding mechanical properties found in graphene to fabricate high Young's modulus (< E > = 185 GPa), low-density nanomechanical resonators. Wafer-scale films as thin as 4 nm are sufficiently robust that they can be delaminated intact and resuspended on a bed of pillars or field of holes. From these films, we demonstrate radio frequency resonators with quality factors (up to 4000) and figures of merit (f x Q > 10(11)) well exceeding those of pure graphene resonators reported to date. These films' ability to withstand high in-plane tension (up to 5 N/m) as well as their high Q-values reveals that film integrity is enhanced by platelet-platelet bonding unavailable in pure graphite.
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